Pipe-pulling device.



No. 836,065. PATENTED NOV. 13,` 1906. R. G. GOATES. PIPE PULLING DEVICE.

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WM, Streuung the ordinary EAY G. coATEs. or LoS ANGELES,

CALIFORNIA, ASSIGNOR, BY 'MESNE ASSIGNMENTS, TO THE CYCLONE DRILL COMPANY, .A CORPORATION OF OHIO.

Specification of Letters Patent. y

PIPE-PULLING DEVICE.

Patented Nov. 13, 1906.

Application filed January 13, 1906. Serial No. 295|980.

.To all, whom, t may concern:

Be it known that I, RAY G. CoATEs, a citizen of the United States, residing at Los Angeles, in the county ofLos Angeles and State 5 of California, have invented. certain new and useful Improvements in Pipe -Pullmg Devices and do hereby declare that the following is a full, clear, and exact description of upper end of a pipe-section and the different [5 parts of my invention properly assembled. Fig. 2 is a detached view of the separable pie-pulling head. .n v

he present invention has relation to devices for pulling or removing pipe from Wells, commonly known as the casingj andit consists inthe novel Aarrangement hereinafter described, and particularly pointed out in the claim.

A Similar numerals of reference indicate corresponding parts in both figures of the drawin s.

gIn the accom anying drawings, represents a portion o a pipe or casing which is of construction and of course is provided with screw-threaded ends, which are primarily for the purpose of connecting a series of sections vtogether by means of the ordinary and common -coupling 2, which coupling is providedl with internal screw-v threads. The rope-socket 3 is of theprdinary construction, to which rope-socket 1s attached the drill-stem 4 in the ordinary manner. The parts just above described do not pertain to the present invention, but are illustrated .for the purpose of showing the a plioation and use ofthe p resent invention, w lchi consists in providing a separable screw-threaded ipe-pulling head and means for connectingftlle members 5 and 6 together in such a manner that the convolutions of the screwthreads will register properly, thereby providing a means for entering the screw-threaded portion of the divided members of the head proper into the internal screw-threaded ,collar or coupling 2. In orter, as above described, the member 5 is rovided with the apertures and the meni- Eer 6 with the pins 8 which pins are adapted der thatv the members may properly registo enter the apertures when the divided members are brought together.

It is well understood that the drill-operating rope 9 is extended over and around the drill-operating pulleys and a winding-drum, and therefore it is impossible without considerable trouble to locate an undivided pulling plug or head; but by forming the pullingplug in two ortions or parts or in divided parts, regard ess of the number of parts, the

parts com osing the pulling-plug can be placed in tlle coupling-collar 2 without disturbing in any manner the drill-operating rope 9. The pulling-plug proper is provided with the-opening 10, produced by semicircular grooves formed in the members 5 and 6 of the pulling-plug, which opening should be of a diameter greater than the diameter f throng the opening either up or down without friction or wear upon the rope. The

the ro e, so that the rope lis free to pass drill-operating rope 9 is attached to the rope-` v socket 3 in the usual manner and of course moves up and down with the movement of the rope. In use when it is desired to pull the 'casing the divided pulling-plug proper is connected to the coupling 2, as illustrated in Fig. l, thereby closing the`top of the uppermost pipe-section 1,l and when the ropesocket is elevated the top or upper endof the 'rope-socket 3 will strike the bottom or lower faces of the divided pipe-pulling plug, which faces are struck by the upper face of the ropesocket, lsaid socket being provided with a suitable striking face or end. The faces of the plug-sections and the face of the ropesocket are formed so as to rovide for suitable contact with each ot er, or, in other Words, -a striking contact. l

It will be understood that the same mechanism for imparting a striking movement to the drill roper is employed to 'produce a striking e ect upon the pulling-plug after the drill has been elevated sufficiently to bring the rope-socket into contactwith the pullingplug, after which a succession of blows or taps can be given to the bottom or lower ends of the pipe-pullinglug sections 5 and 6.

IDO

4 It is Well understood t at in dee wells and a series of sharp quick blows upon the pulldesigned to be iven to the pulling-plug will ing-plug will impart'an'upward movement tol t e sections or section of pipe. The blows be imparted by/t e same mechanism em yed to operate the drill; or, in other wor s, the spudding device of the drilling-machine is employed, thereby doing away with the necessity of adding additional parts to the drillingmachine to accomplisht e purpose of the present invention.

In use the operation and arra ement of my invention is as follows: ln the e inning the drill should be hoisted to the top errick, the driving-cap removed, a coupling put on in its place, the drill lowered into the casing until the rope-socket was a little below the top of the casing, the two parts of the plug assembledy around the rope and screwed home in the coupling that was placed on the casing. Then the casing is pulled up until the first joint of' pipe is above the ground. At

this point the upper coupling carrying the split lug is unscrewed without loosening t e sp it plug. Then the upper joint of pipe and the coupling at its lower end is unscrewed-'and removed from the pipe in the the drill isagain lowered ground. Finally the coupling car-ymg the screwed onto the pipe m the ground.

Having'fully described my invention, what i I claim as new, and desire to secure by Letters Patent, is

In a pipelling device, the combination of a pipe-pul ing lug formed in sections, said sectlons provide with semicircular grooves, the lower portions of the sections provided with screw-threads, and the lower ends of said plug-sections provided with strikingfaces,fand means for registering the screwthreads of the plug-sections, and a ropesocket provided with a striking-face upon its top or upper end, substantially as and for the purpose specified.l v-

In testimony that l. claim the above I have hereunto subscribed my name in the presence of two witnesses.

RAY G. OOATES.

'Witnessesz JOHN A. MORRIS, H. S. RoL'LINsL 

